Home / 39,017.84-53,844.21-21,112.45

Finding the Fourth Proportional to 39,017.84, 53,844.21 and 21,112.45

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Solution

The fourth proportional to 39,017.84, 53,844.21 and 21,112.45 is: 29,134.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,017.84 : 53,844.21 = 21,112.45 : x
  2. Step 2: Convert to fraction form
    39,017.84/53,844.21 = 21,112.45/x
  3. Step 3: Cross multiply
    39,017.84x = 53,844.21 × 21,112.45
  4. Step 4: Simplify right side
    39,017.84x = 1,136,783,191.41
  5. Step 5: Solve for x
    x = 1,136,783,191.41/39,017.84
  6. Step 6: Final answer
    x = 29,134.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.